Acar on the highway slows for 32.0 m/s to rest as the driver approaches a traffic jam. the car has 70.0. to stop. a. solve for the acceleration needed to stop the car? [-7.31m/s^2] b. solve for the time needed to stop [4.37s]

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

read more on -

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

number of electrons for neutral cl

the answer is b, have negligible mass